Skip to content
This repository
Fetching contributors…

Octocat-spinner-32-eaf2f5

Cannot retrieve contributors at this time

file 46 lines (38 sloc) 1.491 kb
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45
/* __ *\
** ________ ___ / / ___ Scala API **
** / __/ __// _ | / / / _ | (c) 2003-2013, LAMP/EPFL **
** __\ \/ /__/ __ |/ /__/ __ | http://scala-lang.org/ **
** /____/\___/_/ |_/____/_/ | | **
** |/ **
\* */


package scala.xml

import Utility.isSpace

object TextBuffer {
  def fromString(str: String): TextBuffer = new TextBuffer() append str
}

/** The class `TextBuffer` is for creating text nodes without surplus
* whitespace. All occurrences of one or more whitespace in strings
* appended with the `append` method will be replaced by a single space
* character, and leading and trailing space will be removed completely.
*/
class TextBuffer
{
  val sb = new StringBuilder()

  /** Appends this string to the text buffer, trimming whitespaces as needed.
*/
  def append(cs: Seq[Char]): this.type = {
    cs foreach { c =>
      if (!isSpace(c)) sb append c
      else if (sb.isEmpty || !isSpace(sb.last)) sb append ' '
    }
    this
  }

  /** Returns an empty sequence if text is only whitespace.
*
* @return the text without whitespaces.
*/
  def toText: Seq[Text] = sb.toString.trim match {
    case "" => Nil
    case s => Seq(Text(s))
  }
}
Something went wrong with that request. Please try again.